Home / 283,726-421,569

Finding the Third Proportional to 283,726 and 421,569

Calculator

Solution

The third proportional to 283,726 and 421,569 is: 626,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,726 : 421,569 = 421,569 : x
  2. Step 2: Convert to fraction form
    283,726/421,569 = 421,569/x
  3. Step 3: Cross multiply
    283,726x = 421,569 × 421,569
  4. Step 4: Simplify right side
    283,726x = 177,720,421,761
  5. Step 5: Solve for x
    x = 177,720,421,761/283,726
  6. Step 6: Final answer
    x = 626,380.46

Related Problems

Find third proportional to 141,863 and 210,784.50
Half scale
Find third proportional to 567,452 and 843,138
Double scale
Find third proportional to 283,728 and 421,572
Similar ratio
Find third proportional to 425,589 and 632,353.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.